양송이 부패병원균(腐敗病原菌)의 발병요인(發病要因) 및 방제(防除)에 관한 연구(硏究)

Some Factors Affecting Growth of Didymocladium ternatum and Chemical Control of Mildew Diseases in Cultivation of Agaricus bisporus

  • Kim, Gang-Po (Institute of Agricultural Sciences, Office of Rural Development) ;
  • Kim, Tae-San (Institute of Agricultural Sciences, Office of Rural Development)
  • 발행 : 1982.12.30

초록

양송이 부패병원균(腐敗病原菌)의 발병요인(發病要因) 및 방제(防除)에 관(關)하여 몇 가지 시험(試驗)을 수행(遂行)한바 그 결과(結果)는 다음과 같았다. 1. 부패병원균(腐敗病原菌)의 균사생장(菌絲生長) 적온(適溫)은 $15{\sim}20^{\circ}C$로 양송이균사(菌絲)보다 저온(低溫)이었다. 2. 본(本) 병원균(病原菌)의 균사생장(菌絲生長) 최적산도(最適酸度)(pH)는 $6{\sim}7$이었다. 3. 본(本) 병원균(病原菌)의 전염시기별(傳染時期別) 피해정도(被害程度)는 복토시(覆土時)부터 3주기말(週期末)에 심(甚)하였고 그 이후에는 피해(被害)가 적었다. 4. 본(本) 병원균(病原菌)의 균사(菌絲)는 $50^{\circ}C$에서 20분이상(分以上), 포자(胞子)는 $50^{\circ}C$에서 60분(分) 또는 $90^{\circ}C$에서 20분간(分間) 열처리(熱處理)로서 사멸(死滅)되었다. 5. 각종(各種) 살균제중(殺菌劑中)에서 Benlate, Homai, Dithane M 45등(等)이 실내(室內) 및 포장시험(圃場試驗)에서 가장 약효가 높았다.

In cultivating the mushroom, there are important several mushroom diseases including Mildew disease, Didymocladium ternatum. Studies on some factors affecting growth of D. ternatum and its chemical control were carried out. The optimum temperature for mycelial growth of D. ternatum was $15{\sim}20^{\circ}C,$ lower than that of Agaricus bisporus. Infection was very severe when it was infected between at casing and at the end of the first flush. Mycelial thermal death occurred at $50^{\circ}C$ when it was treated for more than 20 minutes. For spore, $50^{\circ}C$ for 60 minutes and $60^{\circ}C$ for 20 minutes were required respectively as a thermal death point. Benlate, Homai and Dithane M-45 were selected as effective chemicals for controlling this disease.

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